Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Окт. 9, 2024
Introduction
The
impacts
of
plastic
pollution
on
soil
ecosystems
have
emerged
as
a
significant
global
environmental
concern.
progress
in
understanding
how
affects
microbial
communities
and
ecological
functions
is
essential
for
addressing
this
issue
effectively.
Methods
A
bibliometric
analysis
was
conducted
the
literature
from
Web
Science
Core
Collection
database
to
offer
valuable
insights
into
dynamics
trends
field.
Results
To
date,
effects
residues
enzymatic
activities,
biomass,
respiration
rate,
community
diversity
been
examined,
whereas
microbes
are
still
controversial.
Discussion
include
comprehensive
examination
combined
residue
properties
(Type,
element
composition,
size
age),
(soil
texture,
pH)
at
environmentally
relevant
concentrations
with
various
exposure
durations
under
field
conditions
future
studies
crucial
holistic
impact
ecosystems.
Risk
assessment
pollution,
particularly
nanoplasctics,
perspective
food
web
ecosystem
multifunctioning
also
needed.
By
critical
knowledge
gaps,
scholars
can
play
pivotal
role
developing
strategies
mitigate
risks
posed
by
microorganisms.
Frontiers in Microbiology,
Год журнала:
2025,
Номер
15
Опубликована: Янв. 21, 2025
Biodegradable
plastics,
as
alternatives
to
conventional
waste
are
increasingly
applied
across
various
fields.
However,
the
ecological
risks
associated
with
widespread
use
of
biodegradable
plastics
remain
unclear.
Additionally,
tend
age
in
environment,
leading
changes
their
physicochemical
properties.
The
brought
by
aging
microplastics
have
also
been
scarcely
studied.
In
this
study,
we
selected
(PE-MPs),
(PLA-MPs),
and
aged
(aging-PLA-MPs)
explore
effects
on
rhizosphere
soil
environment
rice.
results
showed
that
reduced
N
P
content,
PE
slightly
increasing
DOC
while
PLA
aging-PLA
significantly
increased
21.13
24.04%,
respectively.
Microplastics
decreased
enzyme
activity,
having
a
somewhat
stimulatory
effect
activity
compared
PLA.
Furthermore,
bacterial
diversity
index
altered
community
structure
dominant
species,
content
FDA
hydrolase
being
main
factors
influencing
community.
Bacteria
were
most
sensitive
PLA,
stability
microbial
network
decreased,
although
negative
impact
This
study
contributes
our
understanding
posed
processes
environment.
Microorganisms,
Год журнала:
2025,
Номер
13(3), С. 657 - 657
Опубликована: Март 14, 2025
Agricultural
plastic
mulch
enhances
crop
yields
but
leads
to
persistent
microplastic
contamination
in
soils.
Concurrently,
nitrogen
(N)
fertilization
and
atmospheric
deposition
profoundly
reshape
microbial
ecosystems.
This
study
examined
the
individual
interactive
effects
of
polyethylene
microplastics
(PE,
1%
w/w)
addition
(N,
180
kg
ha−1
yr−1)
on
soil
protist
communities
rape
(Brassica
napus
L.)
productivity.
High-throughput
sequencing
soil–plant
trait
analyses
revealed
that
PE
alone
reduced
water
retention
biomass
while
elevating
total
carbon
content,
C/N
ratios,
NH₄⁺-N/NO₃−-N
levels.
Conversely,
N
significantly
boosted
chlorophyll
likely
through
enhanced
nutrient
availability.
Strikingly,
combined
PE_N
treatment
exhibited
antagonistic
interactions;
diversity
functional
group
composition
stabilized
resemble
control
conditions,
under
showed
no
difference
from
CK
(with
basal
fertilizer
only),
despite
significant
reductions
alone.
Soil
dynamics
(e.g.,
SWC
ratio)
community
structure
collectively
explained
96%
variation.
These
findings
highlight
potential
mitigate
microplastic-induced
degradation,
offering
a
pragmatic
strategy
stabilize
productivity
contaminated
agricultural
systems.
underscores
importance
balancing
management
with
pollution
sustain
health
global
pressures.
Journal of Polymers and the Environment,
Год журнала:
2025,
Номер
33(3), С. 1542 - 1560
Опубликована: Янв. 18, 2025
Abstract
Artificial
degradation
is
often
used
to
recreate
and
accelerate
the
natural
aging
of
plastic
for
small-scaled
simulation
experiments
assessing
their
environmental
impact.
However,
current
artificial
methods
are
rarely
compared
against
reference
materials
or
validated
using
field-aged
samples,
creating
uncertainties
when
extrapolating
results
naturally
aged
plastics,
making
it
difficult
place
findings
in
an
environmentally
applicable
context.
Therefore,
here
we
four
accessible,
cost-effective,
easily
replicable
(heat,
UVA,
UVC
irradiance
at
two
intensities)
produce
artificially
degraded
materials.
The
were
assessed
over
a
duration
5
months
rate,
efficiency,
similarity
samples
conventional
biodegradable
mulch
film
6-month
field
exposure
period.
We
utilised
attenuated
total
reflectance-Fourier
transform
infrared
spectroscopy
calculate
carbonyl
index
measure
chemical
changes
surface,
as
well
differential
scanning
calorimetry
thermogravimetric
analysis.
Physical
by
thickness
surface
roughness
measurements.
found
that
UVA
was
most
suitable
realistic
method
medium
whilst
recommended
rapid
without
need
simulate
changes,
heat
processing
large
volumes
requirement
prolonged
time
this
study
yielded
depending
on
polymer
type
parameter
interest.
therefore
recommend
establishing
aim,
identifying
spectral
region
interest,
accounting
different
types
select
appropriate
method.
